Use Sharpie China Markers on glass, metal, china and plastic surfaces for technical tasks or measurements. The soft wax tip marks clearly without damaging the material underneath and is water and light-resistant. There is no need to sharpen the tip, just pull the wrapped string to expose more wax for additional work. This pack contains 12 yellow markers. Ideal for use on glass, metal, china and plastic Versatile wax marks on porous and non-porous surfaces No sharpening required, pull string to refresh tip Wax formula is fade and water resistant Erases easily with a damp cloth Colour: Yellow Pack of 12